332 Keysight N9010A EXA Service Guide
CPU/Disk Drive Troubleshooting
A4 CPU Description
The CPU can also be identified by its CPU assembly part number. For older
CPUs, this part number can only be viewed by removing the CPU assembly
from the rear of the analyzer. For newer CPUs, this part number appears below
the external monitor connector and is visible with the CPU installed in the
analyzer.
When the CPU assembly removed, you may see two part numbers, only one of
which is for the CPU assembly. The CPU assembly part number is on the
bottom of the assembly near the GPIB connector. Refer to the table below to
correlate CPU part number to CPU Option and the proper CPU replacement
part number. Refer also to Service Note N9010A-01A for updates.
Disk Drive
The A5 Disk Drive assembly is contained within the A4 CPU board assembly
and is replaced as an individual assembly. Also, when the A4 CPU board
assembly is replaced the existing A5 Disk Drive assembly will be used.
Front Panel Interface
The instrument USB bus is the electrical interface to the instrument front
panel. One of the USB ports on the host controller hub located on the A4 CPU
board assembly is routed to the A1A2 Front Panel Interface board for this use.
The port is a High Speed USB (2.0) compliant port.
Graphics Controller
The entire graphics subsystem is contained within a single chip, along with the
interface logic to map memory from main system memory for the video RAM.
There are two outputs of the graphics controller that are used by the
instrument. One provides the LCD video data to drive the internal instrument
LCD display and the other supplies the rear panel VGA output.
Description CPU Option CPU Replacement Part Number
0960-2688 N9010A-PC1 N9020-60031
W1312-60068 N9010A-PC2 N9020-60081
W1312-60072 N9010A-PC3 N9020-60115
W1312-60190 N9010A-PC2 N9020-60081
W1312-60191 N9010A-PC3 N9020-60115
W1312-60196 N9010A-PC4 N9020-60135
W1312-60197 N9010A-PC5 N9020-60140
W1312-60141 N9010A-PC6 N9020-60247
W1312-60210 N9010A-PC7 N9020-60248
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